公开(公告)号：US20240283115A1

公开(公告)日：2024-08-22

申请号：US18646755

申请日：2024-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shengwang CHEN ,  Wenlin ZHOU ,  Zhijun GUO

IPC: H01M50/583

CPC classification number: H01M50/583

Abstract: A safety mechanism includes a connecting piece and an expanding layer. The connecting piece includes a first connecting portion, a fusing portion, and a second connecting portion that are connected in sequence. The expanding layer is disposed on a side of the first connecting portion or the second connecting portion in a first direction and located at a position of the first connecting portion or the second connecting portion close to the fusing portion. The first direction is a thickness direction of the connecting piece.

公开(公告)号：US20240154282A1

公开(公告)日：2024-05-09

申请号：US18411035

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ningsheng WU ,  Lulu BAI ,  Wenlin ZHOU ,  Haibo KE ,  Quankun LI ,  Peng WANG

IPC: H01M50/636 ,  H01M50/593

CPC classification number: H01M50/636 ,  H01M50/593 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device. The battery cell includes: a shell, including a first wall provided with a medium injection hole; an electrode assembly, disposed inside the shell; and an insulating member, disposed between the first wall and the electrode assembly to insulate and isolate the first wall and the electrode assembly, where a guide structure is disposed on a side, facing the first wall, of the insulating member, and the guide structure is configured to guide a medium injected from the medium injection hole to an edge of the insulating member, so that the medium enters the interior of the battery cell from the edge of the insulating member.

公开(公告)号：US20240021930A1

公开(公告)日：2024-01-18

申请号：US18353689

申请日：2023-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Quankun LI ,  Peng WANG

IPC: H01M50/15 ,  H01M50/30 ,  H01M50/588 ,  H01M50/593 ,  H01M50/14

CPC classification number: H01M50/15 ,  H01M50/30 ,  H01M50/588 ,  H01M50/593 ,  H01M50/14 ,  H01M2200/20 ,  H01M2220/20

Abstract: An end cap includes a cap body, a pressure relief boss, and an insulating member. The cap body has a pressure relief region and an outer surface. In a thickness direction of the cap body, the pressure relief boss is arranged on the outer surface in a protruding manner and surrounds the pressure relief region. The insulating member is attached to the outer surface. In the thickness direction, the pressure relief boss does not extend beyond, in a direction facing away from the outer surface, an end of the insulating member that faces away from the outer surface.

公开(公告)号：US20230327275A1

公开(公告)日：2023-10-12

申请号：US18333167

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Kaihuan YANG ,  Ting ZHENG ,  Quankun LI ,  Peng WANG ,  Mingguang GU

IPC: H01M50/342 ,  F16K17/40

CPC classification number: H01M50/3425 ,  F16K17/403

Abstract: A pressure relief apparatus includes a pressure relief part having a first surface and a second surface opposite to each other in a thickness direction of the pressure relief part, and a plurality of stages of score grooves sequentially arranged on the pressure relief part in a direction from the first surface to the second surface. Of two adjacent stages of score grooves in the thickness direction, one stage of score groove that is farther from the first surface is arranged on a bottom surface of another stage of score groove that is closer to the first surface.

公开(公告)号：US20220384916A1

公开(公告)日：2022-12-01

申请号：US17564598

申请日：2021-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Yulian ZHENG ,  Xinxiang CHEN ,  Liangfan XU ,  Peng WANG ,  Haizu JIN

IPC: H01M50/536 ,  H01M50/147

Abstract: The embodiments of this application provide a battery cell, a battery, an electrical device, and a battery cell manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes an electrode assembly, a housing, an end cover assembly, and a support piece. The electrode assembly includes a main body and tabs. The housing has an opening and is used to accommodate the electrode assembly. The end cover assembly is used to cover the opening. The support piece is located between the main body and the end cover assembly, the tabs are bent around the support piece, and the support piece is configured to prevent the main body from moving along a direction facing the end cover assembly.

公开(公告)号：US20240322375A1

公开(公告)日：2024-09-26

申请号：US18678494

申请日：2024-05-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Ningsheng WU ,  Quankun LI ,  Peng WANG

IPC: H01M50/477 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474

CPC classification number: H01M50/477 ,  H01M10/0404 ,  H01M10/049 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474

Abstract: A battery cell includes a shell; an electrode assembly; and an end cap assembly, including an end cap, a first insulating member and a second insulating member, where the first insulating member is arranged between the electrode assembly and the end cap, so as to insulate and isolate the electrode assembly from the end cap, the second insulating member includes a main body portion and a first flanging portion, the first flanging portion is connected to one end of the main body portion, the main body portion is arranged between the shell and the electrode assembly, so as to insulate and isolate the shell from the electrode assembly, and the first flanging portion is connected to a side of the first insulating member facing the end cap or a side of the first insulating member away from the end cap.

公开(公告)号：US20240313338A1

公开(公告)日：2024-09-19

申请号：US18669179

申请日：2024-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/342 ,  H01M10/04 ,  H01M50/133

CPC classification number: H01M50/3425 ,  H01M10/0404 ,  H01M50/133

Abstract: A battery cell includes a shell and an electrode assembly accommodated in the shell. The shell includes a wall portion, the wall portion includes a main body, a connecting portion and a reinforcing portion, the connecting portion surrounds an outer side of the reinforcing portion, and the main body surrounds an outer side of the connecting portion. The connecting portion is provided with a weakened region, and the battery cell is configured to rupture along the weakened region when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The maximum thickness of the reinforcing portion is greater than the maximum thickness of the main body so as to reduce deformation of the reinforcing portion under the internal pressure.

公开(公告)号：US20240120608A1

公开(公告)日：2024-04-11

申请号：US18225685

申请日：2023-07-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Shengwang CHEN ,  Quankun LI ,  Peng WANG

IPC: H01M50/342 ,  H01M50/103 ,  H01M50/15

CPC classification number: H01M50/3425 ,  H01M50/103 ,  H01M50/15

Abstract: Embodiments of the present application provide an end cap, a battery cell, a battery and a power consuming device, which relate to the technical field of batteries. The end cap may include a cap body and a groove. The cap body may have a first surface. The groove may be provided in the cap body to form a pressure relief zone in a region of the cap body where the groove is provided. The groove may be recessed from the first surface in a thickness direction of the cap body, and groove side faces of the groove may include corner faces at corners of the groove. Each corner face may be connected to the first surface via a first chamfer face.

公开(公告)号：US20240055705A1

公开(公告)日：2024-02-15

申请号：US18494188

申请日：2023-10-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Shengwang CHEN ,  Ningsheng WU ,  Lulu BAI ,  Quankun LI ,  Peng WANG

IPC: H01M50/15 ,  H01M50/103 ,  H01M10/04

CPC classification number: H01M50/15 ,  H01M50/103 ,  H01M10/049 ,  H01M10/0404

Abstract: A battery cell, a battery, a power consuming apparatus, and a method and apparatus for manufacturing the battery cell are described. The battery cell includes a housing, an electrode assembly, and an end cap. The electrode assembly is accommodated in the housing. The end cap includes a first body portion and a first protrusion. The first body portion surrounds an edge of the first protrusion and is configured to be connected to the housing, the first protrusion protrudes relative to the first body portion in a direction away from the electrode assembly in a thickness direction of the end cap, and a first accommodating space is formed inside the first protrusion and is configured to accommodate at least a part of a tab of the electrode assembly. The first body portion is provided with a reinforcement portion being configured to enhance the stiffness of the first body portion.

公开(公告)号：US20230369712A1

公开(公告)日：2023-11-16

申请号：US18351174

申请日：2023-07-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Ningsheng WU ,  Quankun LI ,  Peng WANG

IPC: H01M50/342 ,  H01M50/15 ,  H01M50/103

CPC classification number: H01M50/3425 ,  H01M50/15 ,  H01M50/103 ,  H01M2200/20 ,  H01M2220/20

Abstract: An end cap, a battery cell, a battery and a power consuming device are described. The end cap includes a cap body and a pressure relief groove. The pressure relief groove is provided in the cap body, and the pressure relief groove defines a pressure relief zone. A length direction of the pressure relief zone is consistent with a width direction of the cap body. The end cap has a stress concentration region at a short edge of the pressure relief groove when the inner side of the end cap is subjected to the pressure inside the battery cell, and the end cap has a stress concentration region at a long edge of the pressure relief groove when the outer side of the end cap is subjected to an impact force.